单选题Engine fuel pump index is （）.Athe viscosity indexBthe fuel oil contentsCthe starting speedDthe reading at the rack
单选题
Engine fuel pump index is （）.
A
the viscosity index
B
the fuel oil contents
C
the starting speed
D
the reading at the rack
参考解析
解析：
暂无解析
相关考题：
If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at theA.fuel line connections to the cylinder injection valvesB.gasket surfaces of the fuel oil filtersC.discharge fittings of the fuel injector pumpsD.suction side of the fuel oil transfer pump
Before engaging the turning gear and turning the diesel engine, which of the following operation should be done except______.A.open the indicator cocksB.supply some CYL.Oil to cylinder liner wall with lubricator (only for two stoke diesel engine)C.put the fuel handle in the "stop" positionD.pump up the air bottle
The major cause of fuel pump and injection system problems is _____.A.improper adjustmentsB.contaminated fuelC.kinked fuel linesD.excessive engine vibration
An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.A.stabilizing the ship speedB.increasing the fuel pump settingC.braking the crankshaftD.cutting power off the engine
The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.A.varying the pump discharge pressureB.varying the pump return pressureC.rotation of the pump plungerD.rotation of the pump barrel
单选题Fuel oil discharged to the diesel engine cylinder is atomized at the （）AturbochargerBinjection nozzle tipCcarburetorDfuel oil pump
单选题Load control on a diesel engine is accomplished by （）.Aregulating the speed of the turbochargerBrotating the fuel injector pump plungerCregulating the speed of the fuel oil transfer pumpDchanging engine timing
单选题Problems with the diesel engine fuel injection pump are usually caused by（）Aimproper adjustmentBcontaminated fuelCkinked fuel linesDexcessive engine vibration
单选题A full-flow 50μm filter is installed ,（） so the injection system components on the main engine are safeguarded.Aas close to the main engine as possibleBas close to the main pump as possibleCjust before the fuel valveDjust before the booster pump
单选题If a diesel engine fails to start，one of the likely causes is （）Alow compression temperatureBlow ambient air pressureChigh lube oil pump pressureDhigh fuel oil booster pump pressure
单选题Which of the following machinery space operations is required to be logged in the Oil Record Book?（）ABallasting or cleaning of fuel oil tanksBShifting suction of main fuel pump to reserve fuel oil tankCChanging out sprayer plates to adjust for steam demandDDaily inspection of engine room bilges
单选题An overspeed safety device is usually fitted to a generator engine for （） in the event of overspeed.Acutting power off the engineBincreasing the fuel pump settingCbraking the crankshaftDstabilizing the ship speed
单选题In a marine diesel engine the oil sump is （）.Ajust below the crankcaseBthe oil cup for the exhaust valveCthe pan for collecting drain fuel oilDoil circulating pump
单选题To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.Areduce the engine driven fuel pump outlet pressureBretard the fuel injector timing to reduce powerCincrease the fuel rack settingDreduce the load on the engine
单选题Fuel pump index is （）.Athe viscosity indexBthe fuel oil contentsCthe starting speedDthe reading at the rack
单选题When possible，what is the FIRST step in fighting an engine fuel-pump fire which results from a broken fuel line?（）ASecure all engine room doors，hatches，and ventsBClose the fuel line valveCCheck the spread of the fire with foamDCast the barge off the wharf
单选题Injection lag in a diesel engine may be caused by（）Aa higher cetane number of fuel oilBthe diesel fuel used having a high viscosityCmechanical rigidity in the lube pump mechanismDa decrease rigidity in the fuel pump delivery pressure
单选题In boilers, besides maintaining the burner atomizers, air diffuser vanes, fuel temperature, forced draft fan, fuel pump and other hardware in good condition, there are some adjustments on the （）that can produce a good flame for the most efficient operation.Afuel-air ratioBcompression ratioCfuel rackDviscosity index
单选题The major cause of fuel pump and injection system problems is （）Aimproper adjustmentsBcontaminated fuelCkinked fuel linesDexcessive engine vibration
单选题Significant retardation of a diesel engine fuel injection timing will result in （）Asmoother engine operationBadvanced fuel ignitionCincreased fuel economyDreduced engine power
单选题Low compression pressure in a diesel engine may be the result of （）Ainsufficient fuel supply due to fuel pump valves sticking or leakingBexcessive mechanical clearance between the piston crown and cylinder headCexcessively worn fuel pump plungerDexcessive exhaust back pressure
单选题One remedy for a high firing pressure, in addition to a high exhaust temperature in one cylinder of a diesel engine, is to （）Aincrease scavenge air pressureBreduce fuel booster pump pressureCadjust the fuel rackDretard fuel injector timing
单选题Surface irregularities, such as erosion and pitting on injection pump plungers, will（）Aincrease ignition delayBaffect fuel oil meteringCaffect engine performance at low speedDonly disappear due to fuel oil abrasion
单选题Fuel injection uses the jet pump system and a Woodward type hydraulic （） is used to control engine speed.AcontrollerBgovernorCinstrumentDapparatus
单选题In a common rail engine, the fuel is injected into cylinders（）Aby injection pumpsBat a time decided by the injection pump timingCby a signal opening the magnetic valvesDat a time decided by the cam directly
单选题Fuel oil transfer systems used onboard diesel propelled vessels are required to have （）.Atwo fuel oil transfer pumps provided where one is to be independent of the main engineBtwo fuel oil transfer pumps, with a combined capacity exceeding the maximum consumption of the main engineCengine driven transfer pumps and only used in constant speed applicationsDthe capacity of the engine driven pump exceed the consumption rate of the engine to which it is attached
单选题The amount of fuel delivered by a helical plunger fuel injection pump is controlled by （）Avarying the pump discharge pressureBvarying the pump return pressureCrotation of the pump plungerDrotation of the pump barrel